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diff --git a/netx/net/sourceforge/jnlp/LaunchHandler.java b/netx/net/sourceforge/jnlp/LaunchHandler.java
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+// Copyright (C) 2001-2003 Jon A. Maxwell (JAM)
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+package net.sourceforge.jnlp;
+
+import net.sourceforge.jnlp.runtime.*;
+
+/**
+ * This optional interface is used to handle conditions that occur
+ * while launching JNLP applications, applets, and installers.
+ *
+ * @author <a href="mailto:[email protected]">Jon A. Maxwell (JAM)</a> - initial author
+ * @version $Revision: 1.9 $
+ */
+public interface LaunchHandler {
+
+    /**
+     * Called when the application could not be launched due to a
+     * fatal error, such as the inability to find the main class or
+     * non-parseable XML.
+     */
+    public void launchError(LaunchException exception);
+
+    /**
+     * Called when launching the application can not be launched due
+     * to an error that is not fatal.  For example a JNLP file that
+     * is not strictly correct yet does not necessarily prohibit the
+     * system from attempting to launch the application.
+     *
+     * @return true if the launch should continue, false to abort
+     */
+    public boolean launchWarning(LaunchException warning);
+
+    /**
+     * Called when a security validation error occurs while
+     * launching the application.
+     *
+     * @return true to allow the application to continue, false to stop it.
+     */
+    public boolean validationError(LaunchException security);
+    // this method will probably be replaced when real security
+    // controller is in place.
+
+    /**
+     * Called when an application, applet, or installer has been
+     * launched successfully (the main method or applet start method
+     * returned normally).
+     *
+     * @param application the launched application instance
+     */
+    public void launchCompleted(ApplicationInstance application);
+
+}